1 A wheel and an axle together make a simple machine. 2  Wheels and axles are used to carry loads around easily, for long distances with very less effort. 3  A pulley consists of a wheel with a groove around it. 4  A rope can be passed through the groove.
In sociology and related social sciences, the idea of collective consciousness comes from the French theorist and sociologist Emile Durkheim. Collective consciousness is all about understanding what makes society work.
The collective unconscious is Jungâs boldest and most controversial concept. Jung identifies the collective, or transpersonal, unconscious as the center of all psychic material that does not come from personal experience. Its contents and images appear to be shared with people of all time periods and all cultures.